Is INCUT a Wordle Word?

Yes. INCUT is a valid Wordle word.

It is not on the Wordle answer list, so it is unlikely to be a daily answer.

What does INCUT mean?

Set in by or as if by cutting.
Inserted in a reserved space of the text instead of in the main margin.“incut notes”

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: WeakIn the top 49% of all valid Wordle words for testing common letters.
Vowels: I, U
Unique letters: 5 of 5
Common letters: I, T

Letter ratings use how often each letter appears in Wordle answers.

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.